Question
A solid cylinder has total surface area of 1848 sq.cm.
Curved surface area is 1/3rd of its total surface area. The volume of the cylinder is:Solution
Curved surface area = 1/3 × Total surface area 2πrh = 1/3 × 2πr(h + r) 3h = h + r 2h = r Total surface area ⇒ 2πr (h + r) = 1848 2 × 22/7 × 2h (h + 2h) = 1848 h (h+2h) = 147 h² + 2h² = 147 3h² = 147 h² = 49 h = 7 R = 14 Volume of cylinder = πr²h ⇒ 22/7 × 14 × 14 × 7 ⇒ 4312 cm³
Which of the following is the third sentence of the passage?
Directions : In each of the questions given below a sentence is given with three words in bold. Choose the option which gives the correct sequence of ...
levied on Harley-Davidson motorcycles (A)/ India has offered the United States a commitment (B)/ and scrap an import tariff of 50% (C)/ to increase purc...
Directions : In each of the questions given below a sentence is given with three words in bold. Choose the option which gives the correct sequence of t...
Which should be the fourth sentence after rearrangement?
A. investigation into an alleged state-sponsored doping
B. from competing in the Olympic Games following
C. program at the 2014 Winter Oly...
Which should be the third sentence after rearrangement?
1. One evening after dark a young man prowled among the crumbling red mansions, ringing their bells.
P. To the door came a housekeeper who made h...
Which is the THIRD sentence of the paragraph?
1. A film director decided to make a romantic film.
P. A long spell of audition was conducted to find a suitable heroine.
Q. Mr. Mohan Lal...
Relevant for Exams:
